Question

Which equation has a constant of proportionality equal to 1?
Choose 1 answer:

Answer 1

D.

Explanation:

The first three options have fractions, making it impossible to have a constant proportionality of 1.

D is correct, y = x. Since x doesn't have a value beside it, x represents 1.

Therefore, the constant proportionality of D is 1, and is your correct option.